What are the complications of ureteral valve?

summary

Congenital ureteral valvular disease refers to a transverse mucosal fold protruding out of the urinary canal, mostly within 3cm of the junction of bladder and ureter. It is clinically divided into three types: annular valve (single or multiple annular valves), lobate valve (single or multiple lobate valves) and mixed valve (annular valve combined with lobate valve), causing proximal ureteral dilatation. What are the complications of ureteral valve?

What are the complications of ureteral valve?

Although there are three theories of congenital ureteral valvular disease, the theory of residual embryonic fold can explain the formation of upper ureteral annular valve and multiple annular valve; The "membrane formation theory" can explain the formation of lower ureteral valves, and the "abnormal ureteral embryogenesis theory" can explain the occurrence of other different types of ureteral valves.

2. The persistent existence of chwalle membrane: chwalle membrane is a kind of epithelial tissue membrane located in the lower ureter cavity, which appears at 6 weeks of gestation and is a normal sign of ureteral development, but it will rupture and degenerate at 8 weeks. If it is only partially ruptured or not ruptured, it will lead to the formation of catheter valve.

3. Ostling's folds lead to pathological obstruction. Abnormal ureteral embryogenesis. It is often manifested as lumbago and abdominal pain, nausea, vomiting and urinary tract infection on the affected side. If it is bilateral lesions, renal insufficiency may occur; Hematuria often occurs in patients with colic and stone; In patients with hydronephrosis, cystic masses can be found in the waist and abdomen.

matters needing attention

According to different conditions, treatment options: 1. Simple valve resection. 2. Valvular ureterectomy and end-to-end ureteral anastomosis. 3. If renal function has been lost, nephroureterectomy should be performed.